Need 700r4, what years will work
Thread Starter
Joined: Mar 2000
Posts: 1,692
Likes: 1
From: Corona
Car: 92 Form, 91 Z28, 89 GTA, 86 Z28
Engine: BP383 vortech, BP383, 5.7 TPI, LG4
Transmission: 4L60e, 700R4, 700R4..
Axle/Gears: 3.27, 2.73
Need 700r4, what years will work
Well,
My dad just blew out my transmission when I left it home for a few weeks. It's behind an 86 Z28 LG4. Which years came with the mechanical speedo, and which years will work with the stock computer? If I use a later year transmission with the torque converter that comes with it, will everything else hook up? If I get a tranny and TC with an electronic speedo, can I convert it easily to mechanical speedo stuff?
Thanks
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86 Z28
LG4 rebuilt tired again
Worn out 700R4
Have 400 short block waiting for a rebuild still planning it out
My dad just blew out my transmission when I left it home for a few weeks. It's behind an 86 Z28 LG4. Which years came with the mechanical speedo, and which years will work with the stock computer? If I use a later year transmission with the torque converter that comes with it, will everything else hook up? If I get a tranny and TC with an electronic speedo, can I convert it easily to mechanical speedo stuff?
Thanks
------------------
86 Z28
LG4 rebuilt tired again
Worn out 700R4
Have 400 short block waiting for a rebuild still planning it out
Member
Joined: May 2000
Posts: 419
Likes: 0
From: Parkersburg, IA, U.S.
Car: Trans Am
Engine: L69
Transmission: T5
Axle/Gears: 3.73
Well any 700r4 4l60e trans will work the later ones have alot of internal improvments. should be a pretty straight forward swap.Kevin
Supreme Member

Joined: Jan 2001
Posts: 1,978
Likes: 0
From: PA
Car: 88 Firebird WS6
Engine: 350 TPI
Transmission: T56
Axle/Gears: 3.42
It's easily converted by just installing a cable driven speedo gear. mid 87 up to 93 cores are most desirable because of the 30 spline input shaft and 28 element sprag.
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